I-78 WB over S. Br. Raritan River
FairHunterdon County, New Jersey · 1.06MI W. of NJ31 · Structure no. 1016157
- Built
- 1958
- 67 years old, rebuilt 1985
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 218 ft
- 3 main spans
- Daily traffic
- 49,741
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-78 WB over S. Br. Raritan River is a prestressed concrete stringer/multi-beam or girder carrying I-78 WB over S. Br. Raritan River in Hunterdon County, New Jersey. It was built in 1958 and reconstructed in 1985, so it is 67 years old, older than the New Jersey average of 58.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 49,741 vehicles a day, roughly 9% of them trucks, projected to reach 60,694 by 2043. The structure is 218 ft (66.4 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-78 WB over S. Br. Raritan River built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1985.
What condition is I-78 WB over S. Br. Raritan River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.
How much traffic does I-78 WB over S. Br. Raritan River carry?
About 49,741 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I-78 WB over S. Br. Raritan River?
The structure is 218 ft (66.4 m) long with a longest span of 71 ft (21.6 m) and a deck 47 ft wide.
Who owns I-78 WB over S. Br. Raritan River?
It is owned by the State Highway Agency.